Plunger-head for tile-presses.



No. 637,752. -,Patented Nov. 2|, 899.

B. n. TBAITEL & w. c. LEIB'ER.

PLUNGER HEAD FUR TILE'PRESSES.

(Application filed Feb. 11, 1899.) (No Model.) 2 Sheets-Sheet I.

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v v Patented Nov. 2|, [899. B. D. TRAITEL &. W. C. LEIBER.

PLUNGER HEAD FOR TILE PBESSES;

(Application filed Feb. 11, 1899'.) (N9 Model.) 7 2 Sheets-Shaet 2.

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n4: NORRIS PETER! 5:0, PHOYQLITHQ, WASHINGTON. 0, c4

UNITED STATES P TENT O FICE.

BENJAMIN DAVID TRAITEL AND WILLIAM CHARLES LEIEER, OF NEIV YORK, N. Y.,ASSIGNORS TO TRAITEL BROTHERS & (30., OF SAME PLACE.

PLUNGER-HEAD FOR TlLE-PRESSES.

SPECIFICATION forming part of Letters Patent No. 637,? 52, datedNovember 21, 1899.

Application filed February 11, 1899. Serial No. 705,291. (No model.)

To all whom it may concern.-

Be it known that we, BENJAMIN DAVID TRAITEL and WILLIAM CHARLES LEIBER,of the city of New York, borough of Manhattan, in the county and Stateof New York, have invented a new and Improved Plunger-Head 'facethereof, so that the cement or bonding material may be forced into thesedepressions to effectively hold the tiles in the setting.

This specification is the disclosure of one form of our invention, whilethe claims define the actual scope thereof.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the views.

Figure 1 is a front elevation of the press. Fig. 2 is an enlarged detailsection taken through the mold and plunger, showing the plunger inposition to descend upon the mold. Fig. 3 is a similarview, except thatthe plunger is shown pressed into the mold to formthe tile. Fig. 4 is asimilar view, except that the plunger is shown raised, and the tile isalso shown raised by the ejector. Fig. 5 is a detail section of the sameparts on the line 5 5 of Fig. 3, and Fig. 6 is a perspective view of thefinished tile.

The tile'press has a bed 7, carrying the mold 8. Working vertically inthe bed is bar 9, carrying the ejector 10, which is movable verticallyin the mold and on which the tile is formed and by which the tile whenformed is raised out of the mold, as shown in Fig. 4. Mounted in aframing 11, sustained on the bed 7, is a pressure-screw 12, havingconnection with the plunger-bar 14, at the lower end of which is rigidlyheld the plunger-head 15. By working the screw 12 the plunger may beraised and lowered. The plunger-bar 14 is held to slide in a box 16,carried on the traming 11.

The plunger-head 15 supports a die-plate 17 by means of bolts 18,rigidly attached to the die plate and sliding in the plunger head.

The die-plate is pressed away from the plunger-head by expansive springs19, encircling the bolts 18 and situated in cavities 20, formed in theplunger-head. This die-plate moves with the plunger and isadapted toenter the mold, as shown in Figs. 3 and 5, to form the tile. Formed inthe under side of the plunger-head 15 are two transversely-elongatedcavities 21, extending throughout the Width of the plunger-head. Thesecavities respectively receive the upper ends of plugs 22, which arerespectively fitted to slide in diagonally-extending passages formed inthe die-plate 17. The lower ends of the plugs 22 are disposed diagonallywith respect to the sides of the plugs, so that the plugs in movinglongitudinally of themselves will enter the clay-dust forming the tileto produce the depressions 23 in the tile, (see Fig. 6,) whichdepressions have undercut outer side walls. The upper end of each plug22 is formed with atransversely-disposed opening 24, and these openingsrespectively receive the springs 25, the ends of which project beyondthe sides'of the plugs and plunger-head and are twisted so as to bringthem into position to bear against the upper. face of the die-plate 17.The springs 25 tend to throw the plugs 22 upward into the position shownin Figs. 2 and 4 and also reacting against .the die-plate 17 to throwthe die-plate downward. In the normal position of these parts,therefore, the diagonal lower ends of the plugs are in a plane with theunder face of the die-plate.

In the operation of the press the stock or clay-dust is placed in themold, as shown in Fig. 2, and the plunger is moved downward, so that'thedie-plate is forced .into the mold to form the tile in the manner shownin Figs. 3 and 5. As the die-plate engages the, claydust the die-plateis forced up against the action of the springs 25; but the plugs 22,bearing solidly against the plunger-head, do not move relatively to theplunger-head, and consequently the lower ends of the plugs are leftprojecting below the die-plate, so that the deplesslons 23 are producedin the face of the tile. Then when the pressure on the plunger movesupward, the springs 19 and 25 serving 'the'lower ends of the plugs arein plane with momentarily. to keep the die-plate engaged with the tile.This movement continuesuntil the lower face of the die-plate, whereuponthe bolts 18 act to lift the die-plate.

, undercut depressions formed by them without disturbing the Walls ofthe depressions. The tile is then' forced out of. the mold by theejector, as illustrated'in Fig. 4:.

Having thus described our invention, we claim'as new and desire tosecuge by Letters Patent V i 1. The combination of a mold, a plungerhaving a head with a cavity therein, a die-- plate 'yieldingly sustainedon the head, a plug fitted to movediagonally in the die-plate, the upperend of the plug being projected in the cavity of the plunger head :andbearing against the plunger-head, and a spring passed transverselythrough the upperend of the plug and having its ends twisted to bear onthe upper face of the die-plate, whereby to raise the plug with respectto the die-plate. '2. The combination with a plunger-head,.

and an apertured die-plate yieldingly held to the plunger-head, of aplug yieldingly held inthe plunger-head and Working in the aperture ofthey die-plate, substantially as described. g

3. The combination with a recessed plunger-head,and.a die-plateyieldingly held to the plunger-head and having a diagonal openingleading through it, of a'plug yieldingly held in the recess of theplunger-head and projectving into the opening of the die-plate, the plughaving a diagonal outer end, substantially as described. a

at. The combination with a recessed plunger-head, and an apertureddie-plate y'ield- I ingly held to theplungenhead, of a plug hav- Bythese means the plugs 22 are withdrawnfrom the ing,its innerend-projecting in. the recess of theplunger-head and its, outer end intothe aperture of the die-plate, the inner end of the plug being providedwith an opening, and

a-spring passing through the opening of the plug and having its endsresting upon the die-plate, substantially as described.

5. The "combination with a plunger-head having recesses in its underside, said recesses extending throughout the width of the plunger-head,of a die-plate yieldingly held to the plunger head and provided withdiagonal openings, plugs having their inner'ends in the recesses of theplunger-head and their outer ends in the openings of the die-plate, theouter ends of the plugs being beveled and their inner ends apertured,and springs pass- Ping, through the apertures of the plugs and havingtheir ends resting upon the die-plate, substantially as described. i t

. .6. The combination with a plunger-head having its under side providedwith recesses,

said recesses extending throughout the width of the plunger-head, of adie-plateprovided with diagonal openings, bolts secured t0 the die-plateand projecting th rough theplungerhead, springs encircling the bolts,plugs having their inner ends in'therecesses of the

